133044423 has 8 divisors (see below), whose sum is σ = 177456768. Its totient is φ = 88664184.

The previous prime is 133044407. The next prime is 133044427. The reversal of 133044423 is 324440331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133044423 - 2⁴ = 133044407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133044393 and 133044402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133044427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4390 + ... + 16892.

It is an arithmetic number, because the mean of its divisors is an integer number (22182096).

Almost surely, 2^133044423 is an apocalyptic number.

133044423 is a deficient number, since it is larger than the sum of its proper divisors (44412345).

133044423 is a wasteful number, since it uses less digits than its factorization.

133044423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16053.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 133044423 is about 11534.4884151834. The cubic root of 133044423 is about 510.5036969051.

Adding to 133044423 its reverse (324440331), we get a palindrome (457484754).

It can be divided in two parts, 1330 and 44423, that added together give a triangular number (45753 = T₃₀₂).

The spelling of 133044423 in words is "one hundred thirty-three million, forty-four thousand, four hundred twenty-three".